911 attacks anniversary world trade center.

Americans are marking 24 years since the Sept. 11, 2001, attacks with solemn ceremonies, volunteer work and other tributes honoring the victims. At the World Trade Center site in New York City, the nearly 3,000 victims’ names will be read aloud. At the Pentagon in Virginia, a memorial service will honor the 184 service members and civilians killed. And near Shanksville, Pennsylvania, a similar ceremony honors the victims of Flight 93. The remembrances are being held during a time of increased political tensions. The 9/11 anniversary comes a day after conservative activist Charlie Kirk was shot and killed at a college in Utah.